Question

At 298 K, which of the following reactions
represent(s) enthalpy of formation?
CO(g) + 2 H2(g) → CH3OH(1).
2 C(graphite) + 3 H2(g) + O2(g)
C2H5OH(0)
C2H2(g) + 02 (g) – 2 CO(g) + H20(1)
Both (1) and (3)​

Answer 1

Answer:

Both (1) and (3) is the answer.